The charts have a new sugar daddy.
For the week ended Sunday, Love on the Inside moved 171,000 to Breakout's 163,000, per Nielsen SoundScan.
This is the first No. 1 album for the tandem of Jennifer Nettles and Kristian Bush. Their lead single, "All I Want to Do," has also topped the country charts, making it their third chart-lording single to date.
Cyrus, who hosted last weekend's Teen Choice Awards and took home a raft of trophies, saw her solo debut's sales slide by 56 percent from its opening week. Sugarland, on the other hand, was down 45 percent.
Love on the Inside owes some of its second-week success to an interesting marketing strategy. The album debuted as a deluxe edition with bonus tracks, and then last week came out in a lower-priced standard version that helped keep sales humming along. (Both editions count as just one title for the purposes of sales tracking.)
While the Peach State duo won the rematch, Cyrus is still winning the war. In total sales, Breakout is topping Love by 49,000 copies, 534,000 to 485,000.
Christian rockers Third Day landed the week's biggest bow at No. 6, selling 75,000 copies of Revelation. This is a new chart high for the Grammy-winning outfit, whose recent Billboard cover hailed the band as the next big Christian crossover act.
Kidz Bop 14, the popular series of children-crooned, parent-torturing cover tunes, scored the only other top 10 bow at No. 8, with 58,000 copies blaring out of minivans nationwide.
Elsewhere, Scars on Broadway—featuring System of a Down's guitarist and stickman—sold 24,000 copies of its eponymous debut at No. 17.
Other notable debuts include Rick Springfield's Venus in Overdrive at No. 28, Alice Cooper's Along Came a Spider at 53 and Soulfly's Conquer at 66.
Meanwhile, on the digital tracks chart, Rihanna's "Disturbia" jumped to No. 1 on 139,000 copies, sending Katy Perry's unavoidable "I Kissed a Girl" down to No. 3 after several weeks on top. Still, with another 119,000 copies sold, Perry's total digital sales are just shy of 2 million copies for the year.
Overall, album sales are down 6 percent from last week and down nearly 9 percent compared to the same week in 2007, when Commons Finding Forever topped the chart.
Here's a rundown of the top 10:
1. Love on the Inside, Sugarland
2. Breakout, Miley Cyrus
3. Mamma Mia! soundtrack, various
4. Rock N Roll Jesus, Kid Rock
5. Tha Carter III, Lil Wayne
6. Revelation, Third Day
7. Viva la Vida, Coldplay
8. Kidz Bop 14, Kidz Bop Kids
9. Camp Rock soundtrack, various
10. Untitled, Nas